<template>
  <Preson ref="ren"></Preson>
  <!-- <Car></Car> -->
  <button @click="showLog">点击输出</button>
</template>

<script setup lang="ts" name="App">
// import Car from "./components/Car.vue";
import Preson from "./components/Preson.vue";
import {ref} from 'vue'
let ren = ref()
function showLog(){
  console.log(ren.value)
}
</script>

<style>

</style>
